Meta didn't specify what the AI is looking for, only that it's testing 'AI technology in the US that will proactively find accounts we suspect belong to teens,' but are pretending to be adults.

Meta has started testing AI technology to detect teens using its platforms through adult accounts, and shift them to protected accounts.

Meta says it's doing more to make sure as many of its younger users as possible are using the teen accounts that it has rolled out for Instagram, Facebook and Messenger. Starting today, it's testing artificial intelligence tech in the US to detect whether a person is a teen — even if they've lied about their birthday to make it seem like they're an adult — and then move them to a teen account.